Okay first, you tie your partner's ankles to his/her wrists (Right ankle to right wrist and left ankle to left wrist.)

With the slack of the knot, you tie another knot to the top rest of a chair. You then make sure your partner is hanging slightly off the ground when you sit and put weight on the other side of the chair. Now, you put your legs between the space in the backrest and the seat as if you are sattling a horse. You will hold on to the rope tied to the top of the seat and then proceed to take a shit all over your partners face.